Create the Store with LVM

It is recommended to create the STORE machine without the disk for the storage being mounted by the installation routines. 

Useful Commands

The following commands are useful to see the current configuration of the machine,

Erstellen des Stores mit LVM

Die meisten Linux / CentOS Installationen von uns arbeiten mit LVM. Diese Anleitung beschreibt, wie die Rolle STORE auf ein System mittels LVM installiert werden kann.

Schritt 1 - Feststellen der aktuellen config

# Show free space on existing devices
df -h

# Partitionen anzeigenShow drives
ls /dev/sd*

# Show partitions
fdisk -l

# Show partitions
ls /dev/sd*

# IfRe-scan the disk cannot yet be seen, re-scan the SCSI bus SCSI bus
echo "- - -" > /sys/class/scsi_host/host0/scan
echo "- - -" > /sys/class/scsi_host/host1/scan
echo "- - -" > /sys/class/scsi_host/host0host2/scan
...

# View physical volumes managed by LVM
lvm pvs

# Display logical volumes managed by LVM
lvm lvs

# Display logical volume groups managed by LVM
lvm vgs

# Where is what mounted
mount

Die Informationen oben werden nun gebraucht. Die Konfiguration sollte geprüft werden, nicht das bereits ein LVM für das Storage vorgesehen ist.

Schritt 2 - Anlegen einer neuen Partition

Hier ist es erforderlich, dass man weiß, wo der zusätzlicher Platz zu finden ist. Es gibt 2 Varianten - entweder eine neue Platte, oder eine erweiterte Platte. 

In beiden Fällen, wird eine neue Partition angelegt. Hier in diesen Beispiel, wurde eine neue Platte genutzt, die auf /dev/sdb zu finden ist.

Die Befehle unten sowie die Partitionsnummer (bei einer vorhandenen Platte ist die Partition dann nicht mehr zwingend 1), entsprechend anpassen.

Some of the information above may be required to complete installation.

It is important to know where the disk to be used is, and where the space is. 

Usually, we recommend adding a second disk drive to the machine for the storage. 

The following assumes that the disk was added as /dev/sdb on the machine, and is not yet partitioned. 

If this is not the case, or the drive is not /dev/sdb or the space was added to an existing partition, then the commands below will have to be (carefully) modified to take this into account.

Creation Steps

Create a Partition

Translations Ignore

Code Block Partitioning with language bash title fdisk fdisk /dev/sdb   # --> Edit the partitions on /dev/sdasdb   n # --> Create new partition p # --> New primary partition 1 # --> Create new partition 1 (view output at fdisk -1 above) Enter # --> Confirmation that the first available cylinder should be used Enter # --> Confirmation that the last available cylinder is to be used (gives the maximum size in total) t # --> Change partition type 8e # --> Linux LVM w # --> When OK, write   reboot now

Create LVM Physical Volume

This command creates a physical volume which can be managed by LVM.

The above commands will have created a partition /dev/sdb1. If you are working on a different partition, then modify accordingly.Schritt 3 - Hereinnahme in LVM - Device Erzeugen

# Here is the previous edition of /dev/sd* --> this is the new record (the 1st partition on /dev/sdb, i.e. the second hard disk, newly created partition)
lvm pvcreate /dev/sdb1

Create a Volume Group

This command creates a volume group called vg_jtelshared. The volume group can be expanded later, by adding more physical volumes. Schritt 4 - Volume Group anlegen

lvm vgcreate "vg_jtelshared" /dev/sdb1

Create a Logical Volume

Finally, a logical volume lv_jtelshared is created on the volume group which contains the aggregated space.Schritt 5 - Logical Volume anlegen

lvm lvcreate -l +100%FREE vg_jtelshared -n lv_jtelshared

Create File System

Now, the file system is created. Here we use xfs, though you can use something else if you really want.Schritt 6 - File System erzeugen

mkfs.xfs -L data /dev/vg_jtelshared/lv_jtelshared

Prepare Mount Point

The data should be mounted to the directory /srv/jtel/shared.

The following commands prepare for this:Schritt 7 - Mount Point vorbereiten

mkdir /srv/jtel
mkdir /srv/jtel/shared 
chown -R jtel:jtel /srv/jtel/shared

Schritt 8 - Mount Point in fstab festlegen und mounten

Add to fstab to Mount at Boot

The following adds a line to fstab to mount the file system at bootfstab Eintrag:

vicat <<EOFF >> /etc/fstab
...
(add the following line)
 
/dev/mapper/vg_jtelshared-lv_jtelshared /srv/jtel/shared        xfs     defaults 0   0

EOFF

Mount the File System

mount /srv/jtel/shared

Checks

df -h

This should show an entry for /srv/jtel/shared

with the expected amount of free space.

Install and Configure Access to STORE

Install Samba

These commands install the samba server and client and lsof.

yumdnf -y install samba samba-client lsof

Configure Samba

The following creates a samba configuration file with a minimum configuration.

# SMB Conf
cat <<EOFF > /etc/samba/smb.conf
[global]
        workgroup = SAMBAJTEL
        security = user
        passdb backend = tdbsam
        printing = cups
        printcap name = cups
        load printers = yes
        cups options = raw
        min protocol = NT1SMB3
    reset on zero vc ntlm auth = yes

[homes]
        comment = Home Directories
        valid users = %S, %D%w%S
        browseable = No
        read only = No
        inherit acls = Yes

[printers]
        comment = All Printers
        path = /var/tmp
        printable = Yes
        create mask = 0600
        browseable = No

[print$]
        comment = Printer Drivers
        path = /var/lib/samba/drivers
        write list = root
        create mask = 0664
        directory mask = 0775

[shared]
    comment = jtel ACD Shared Directory
    read onlypublic = no
    read publiconly = yesno
    writable = yes
    locking = yes
    path = /srv/jtel/shared
    guest ok = yes
    create mask = 0644
    directory mask = 0755
    force user = jtel
    force group = jtel
    acl allow execute always = True

EOFF
sed -i -e "s/MYGROUP/WORKGROUP/g" /etc/samba/smb.conf

Setup SeLinux

and the Firewall

The following command sets up selinux for the smb service and opens the necessary ports in the firewallReplace <password> with the password for the jtel user:

Translations Ignore
SeLinux, jtel User, Firewall Code Block title setsebool -P samba_enable_home_dirs=on samba_export_all_rw=on use_samba_home_dirs=on use_nfs_home_dirs=on printf '<password>\n<password>\n' | smbpasswd -a -s jtel firewall-cmd --zone=public --add-port=445/tcp --add-port=139/tcp --add-port=138/udp --add-port=137/udp --permanent firewall-cmd --reload

If necessary, add further users to samba - replacing password with the actual password for the user. Here, for example, the windows administrator user: